Part Names And Settings - Mitsubishi MELSEC Q4ARCPU User Manual

4.5 Part names and Settings

4.5.1 Part names and settings
The programmable logic controller part names and settings are explained in this
section.
No. Name
(1) RUN LED
(2) ERROR LED
(1) (2) (3) (4) (5) (6)
RUN ERROR USER BAT.ALM HOLD
(9)
(12)
(10)
(13)
(12)
(13)
Appearance with front cover open
Indicates the CPU module operating Status.
Lamp ON : RUN/STOP When key switch is set to RUN or STEP RUN,
and operation is in progress.
Lamp OFF : RUN/STOP When key switch is set to STOP, PAUSE or
STEP, RUN and operation is stopped. Or, when an error
that stops operation has been detected.
Lamp flashing : When writing to program occurred while stopped, followed
by STOP → RUN switching (RUN/STOP key switch). A
CPU RUN status is not in effect at this time. In order to
re-establish the CPU RUN status, turn the RUN/STOP key
switch to RUN → STOP → RUN, or execute a reset using
the RUN/STOP key switch. (In the case of models
Q4ARCPU, a "PRG.CHECK!!" message is displayed.)
Lamp ON : When a self-diagnosis error (excluding battery error) which
does not stop operation has been detected. (When a
"continue operation at error detection" parameter setting
has been designated.)
Lamp OFF : Normal Lamp
Lamp flashing : When an error that stops operation has been detected.
51
(8)
BOOT
(7)
(11)
(14)
(15)
(17)
(18)
(16)
(19)
Function